Model Term | Parameter Effect | Coefficient | SD | T-value | P-value |
Constant |
| 74.87 | 2.60 | 28.77 | 0.000 |
X1 | 7.275 | 3.638 | 0.703 | 5.18 | 0.000* |
X2 | 1.642 | 0.821 | 0.703 | 1.17 | 0.260 |
X3 | −1.475 | −0.737 | 0.703 | −1.05 | 0.310 |
X4 | 4.183 | 2.092 | 0.703 | 2.98 | 0.009* |
X1*X1 | −0.230 | −0.115 | 0.322 | −0.36 | 0.726 |
X2*X2 | 0.395 | 0.198 | 0.322 | 0.322 | 0.548 |
X3*X3 | −2.555 | −1.277 | 0.322 | −3.97 | 0.001* |
X4*X4 | −0.492 | −0.246 | 0.322 | −0.76 | 0.456 |
X1*X2 | −0.712 | −0.356 | 0.430 | −0.83 | 0.420 |
X1*X3 | −0.037 | −0.019 | 0.430 | −0.04 | 0.966 |
X1*X4 | 3.919 | 1.959 | 0.430 | 4.55 | 0.000* |
X2*X3 | −0.787 | −0.394 | 0.430 | −0.92 | 0.374 |
X2*X4 | −2.244 | −1.122 | 0.430 | −2.61 | 0.019* |
X3*X4 | −0.744 | −0.372 | 0.430 | −0.86 | 0.400 |